Effect of Waste Tire Dust (WTD) Size on the Mechanical and Morphological Properties of Polypropylene/Waste Tire Dust (PP/WTD) Blends

摘要: ABSTRACT Waste tire dust (WTD) of mechanically reclaimed scrap tires was blended with polypropylene (PP) in five different compositions to prepare PP/WTD blends. Three series blends three sizes WTD (250–500 µm, 500–710 µm, and 710 µm–1 mm) were prepared a Haake Rheomix Polydrive R 600/610 at temperature 180°C rotor speed 50 rpm for 9 min. The results show that the same blending composition, fine size require higher equilibrium torque exhibit values tensile strength, Young's modulus, elongation break (Eb) than coarser size. swelling index reveals have better resistance both oil toluene all WTD. Scanning electron microscope (SEM) observation indicates finest adhesion coarse sizes.